:root {
  color-scheme: dark;
  --bg: #090b0f;
  --surface: #11141a;
  --surface-2: #171b23;
  --text: #f5f2ea;
  --muted: #b8b4ad;
  --line: rgba(255, 255, 255, 0.12);
  --blue: #4f7cff;
  --blue-soft: rgba(79, 124, 255, 0.14);
  --gold: #f4c56a;
  font-family: "Lexend", system-ui, sans-serif;
  background: var(--bg);
  color: var(--text);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; min-width: 320px; background: var(--bg); color: var(--text); }
a { color: inherit; }
img { display: block; max-width: 100%; }

.seo-shell { min-height: 100vh; overflow: hidden; background-image: linear-gradient(rgba(255,255,255,.025) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,.025) 1px, transparent 1px); background-size: 40px 40px; }
.seo-container { width: min(1180px, calc(100% - 48px)); margin: 0 auto; }
.seo-header { position: relative; z-index: 2; padding: 16px 0; }
.seo-header-inner { min-height: 72px; display: flex; align-items: center; justify-content: space-between; gap: 28px; padding: 0 16px; border: 1px solid var(--line); background: rgba(9,11,15,.92); }
.seo-brand img { width: 154px; height: auto; }
.seo-nav { display: flex; align-items: center; gap: 28px; font: 700 12px/1 "Azeret Mono", monospace; text-transform: uppercase; }
.seo-nav a { text-decoration: none; color: var(--muted); }
.seo-nav a:hover, .seo-nav a:focus-visible { color: var(--text); }
.seo-button { min-height: 48px; display: inline-flex; align-items: center; justify-content: center; gap: 10px; padding: 0 22px; border: 1px solid var(--blue); background: var(--blue); color: white; text-decoration: none; font-weight: 700; border-radius: 6px; }
.seo-button:hover, .seo-button:focus-visible { background: #6b90ff; }
.seo-button.secondary { background: transparent; border-color: var(--line); color: var(--text); }

.seo-hero { min-height: 650px; display: grid; grid-template-columns: minmax(0, 1fr) minmax(390px, .82fr); align-items: center; gap: 72px; padding: 72px 0 80px; }
.seo-hero.seo-hero-solo { min-height: 560px; grid-template-columns: minmax(0, 900px); }
.seo-breadcrumb { margin: 0 0 28px; color: #8e98aa; font: 600 12px/1.5 "Azeret Mono", monospace; }
.seo-breadcrumb a { text-decoration: none; }
.seo-hero h1 { max-width: 760px; margin: 0; font: 800 clamp(48px, 5.8vw, 82px)/.98 "Archivo", sans-serif; letter-spacing: 0; text-wrap: balance; }
.seo-hero-copy > p:not(.seo-breadcrumb) { max-width: 660px; margin: 28px 0 0; color: var(--muted); font-size: 18px; line-height: 1.65; }
.seo-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 34px; }
.seo-proof { display: flex; flex-wrap: wrap; gap: 24px; margin: 38px 0 0; padding: 24px 0 0; border-top: 1px solid var(--line); }
.seo-proof span { color: var(--muted); font-size: 14px; }
.seo-proof strong { display: block; margin-bottom: 4px; color: var(--text); font: 800 24px/1 "Archivo", sans-serif; }

.seo-sample { position: relative; padding: 18px; border: 1px solid var(--line); background: var(--surface); box-shadow: 0 30px 80px rgba(0,0,0,.35); }
.seo-sample::before { content: "VISTA PREVIA REAL"; position: absolute; top: -14px; left: 18px; padding: 8px 10px; background: var(--gold); color: #15110a; font: 700 10px/1 "Azeret Mono", monospace; }
.seo-sample img { width: 100%; height: auto; object-fit: contain; background: #f3f0e5; }
.seo-sample figcaption { margin-top: 14px; color: #9499a4; font-size: 12px; line-height: 1.5; }

.seo-sample-section { display: grid; grid-template-columns: minmax(0, .72fr) minmax(420px, 1.28fr); gap: 72px; align-items: center; }
.seo-sample-copy h2 { margin: 0 0 20px; font: 800 clamp(38px, 4.5vw, 60px)/1.04 "Archivo", sans-serif; }
.seo-sample-copy p { color: var(--muted); line-height: 1.7; }
.seo-sample-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 28px; }
.seo-sample-trigger { width: 100%; padding: 14px; border: 1px solid var(--line); background: var(--surface); cursor: zoom-in; }
.seo-sample-trigger img { width: auto; height: auto; max-width: 100%; max-height: 620px; margin: 0 auto; object-fit: contain; background: #f3f0e5; }
.seo-sample-trigger:focus-visible { outline: 2px solid var(--blue); outline-offset: 4px; }
.seo-sample-fallback { color: var(--muted); font-size: 13px; }
.seo-sample-fallback:hover { color: var(--text); }

.seo-sample-dialog { width: min(94vw, 1320px); max-height: 94vh; padding: 52px 20px 20px; border: 1px solid var(--line); background: #0d1015; color: var(--text); }
.seo-sample-dialog::backdrop { background: rgba(0, 0, 0, .88); }
.seo-sample-dialog img { display: block; max-width: 100%; max-height: calc(94vh - 96px); margin: 0 auto; object-fit: contain; background: #f3f0e5; }
.seo-dialog-close { position: absolute; top: 12px; right: 12px; width: 34px; height: 34px; border: 1px solid var(--line); border-radius: 4px; background: var(--surface-2); color: var(--text); font-size: 22px; line-height: 1; cursor: pointer; }

.guide-hero { position: relative; min-height: 680px; display: flex; align-items: center; isolation: isolate; overflow: hidden; }
.guide-hero > img { position: absolute; inset: 0; z-index: -1; width: 100%; height: 100%; object-fit: cover; }
.guide-hero-copy { width: min(650px, 54%); padding: 88px 0; }
.guide-hero h1 { margin: 0; font: 800 clamp(48px, 6vw, 82px)/.98 "Archivo", sans-serif; text-wrap: balance; }
.guide-hero p { margin: 26px 0 0; color: #d3d2cf; font-size: 18px; line-height: 1.65; }
.guide-section { padding: 96px 0; }
.guide-prose { width: min(780px, 100%); margin: 0 auto; }
.guide-prose h2 { margin: 64px 0 18px; font: 800 clamp(32px, 4vw, 48px)/1.08 "Archivo", sans-serif; }
.guide-prose h2:first-child { margin-top: 0; }
.guide-prose h3 { margin: 36px 0 12px; font: 700 23px/1.2 "Archivo", sans-serif; }
.guide-prose p, .guide-prose li { color: var(--muted); font-size: 17px; line-height: 1.78; }
.guide-prose a { color: #9db5ff; }
.guide-prose ul, .guide-prose ol { padding-left: 24px; }
.guide-note { margin: 32px 0; padding: 22px 24px; border-left: 3px solid var(--gold); background: rgba(244,197,106,.07); color: #ddd7ca; line-height: 1.7; }
.guide-checklist { margin: 28px 0; padding: 0; list-style: none; border-top: 1px solid var(--line); }
.guide-checklist li { position: relative; padding: 18px 0 18px 34px; border-bottom: 1px solid var(--line); }
.guide-checklist li::before { content: "✓"; position: absolute; left: 0; color: var(--blue); font-weight: 800; }
.guide-directory { width: 100%; margin: 32px 0; border-collapse: collapse; }
.guide-directory th, .guide-directory td { padding: 16px 12px; border-bottom: 1px solid var(--line); text-align: left; vertical-align: top; }
.guide-directory th { color: var(--text); font: 700 12px/1.4 "Azeret Mono", monospace; text-transform: uppercase; }
.guide-directory td { color: var(--muted); line-height: 1.55; }
.guide-docdecks { display: grid; grid-template-columns: .8fr 1.2fr; gap: 72px; align-items: center; }
.guide-docdecks h2 { margin: 0; font: 800 clamp(40px, 5vw, 68px)/1 "Archivo", sans-serif; }
.guide-docdecks-copy p { color: var(--muted); font-size: 17px; line-height: 1.75; }
.guide-sources { padding-top: 32px; border-top: 1px solid var(--line); color: #8c919b; font-size: 13px; line-height: 1.7; }
.guide-sources a { color: #aeb9cf; }

.seo-band { border-block: 1px solid var(--line); background: rgba(17,20,26,.86); }
.seo-section { padding: 96px 0; }
.seo-section-heading { display: grid; grid-template-columns: .55fr 1fr; gap: 48px; margin-bottom: 52px; }
.seo-section-heading p { margin: 0; color: var(--blue); font: 700 12px/1.4 "Azeret Mono", monospace; text-transform: uppercase; }
.seo-section-heading h2 { margin: 0; font: 800 clamp(34px, 4vw, 54px)/1.05 "Archivo", sans-serif; text-wrap: balance; }
.seo-intro { max-width: 780px; margin: -24px 0 48px auto; color: var(--muted); font-size: 17px; line-height: 1.7; }
.seo-topic-list { display: grid; grid-template-columns: repeat(2, minmax(0,1fr)); border-top: 1px solid var(--line); }
.seo-topic { display: grid; grid-template-columns: 48px 1fr; gap: 20px; padding: 28px 24px 28px 0; border-bottom: 1px solid var(--line); }
.seo-topic:nth-child(odd) { border-right: 1px solid var(--line); }
.seo-topic:nth-child(even) { padding-left: 24px; }
.seo-topic-index { color: var(--blue); font: 700 12px/1.4 "Azeret Mono", monospace; }
.seo-topic h3 { margin: 0 0 8px; font: 700 21px/1.2 "Archivo", sans-serif; }
.seo-topic p { margin: 0; color: var(--muted); line-height: 1.6; }

.seo-method { display: grid; grid-template-columns: 1fr 1fr; gap: 64px; align-items: center; }
.seo-method h2 { margin: 0; font: 800 clamp(38px,4vw,58px)/1.02 "Archivo", sans-serif; }
.seo-method-copy { color: var(--muted); font-size: 17px; line-height: 1.7; }
.seo-steps { margin: 30px 0 0; padding: 0; list-style: none; border-top: 1px solid var(--line); }
.seo-steps li { display: grid; grid-template-columns: 38px 1fr; gap: 14px; padding: 18px 0; border-bottom: 1px solid var(--line); }
.seo-steps strong { color: var(--blue); font-family: "Azeret Mono", monospace; }

.seo-quote { max-width: 920px; margin: 0 auto; text-align: center; }
.seo-quote blockquote { margin: 0; font: 700 clamp(28px,3.5vw,46px)/1.25 "Archivo", sans-serif; text-wrap: balance; }
.seo-quote cite { display: block; margin-top: 24px; color: var(--gold); font: 600 12px/1.4 "Azeret Mono", monospace; font-style: normal; text-transform: uppercase; }

.seo-faq { max-width: 860px; margin-left: auto; }
.seo-faq details { border-top: 1px solid var(--line); }
.seo-faq details:last-child { border-bottom: 1px solid var(--line); }
.seo-faq summary { cursor: pointer; padding: 24px 40px 24px 0; font: 700 18px/1.4 "Archivo", sans-serif; }
.seo-faq details p { margin: -8px 0 24px; color: var(--muted); line-height: 1.7; }

.seo-final { padding: 88px 0; background: var(--blue); color: white; }
.seo-final-inner { display: flex; align-items: center; justify-content: space-between; gap: 48px; }
.seo-final h2 { max-width: 760px; margin: 0; font: 800 clamp(38px,4.8vw,66px)/1 "Archivo", sans-serif; }
.seo-final .seo-button { flex: 0 0 auto; background: white; border-color: white; color: #111827; }
.seo-footer { padding: 36px 0; border-top: 1px solid var(--line); color: #8c919b; font-size: 13px; }
.seo-footer-inner { display: flex; justify-content: space-between; gap: 24px; }

@media (max-width: 860px) {
  .seo-container { width: min(100% - 28px, 680px); }
  .seo-nav { display: none; }
  .seo-header-inner { min-height: 64px; }
  .seo-brand img { width: 132px; }
  .seo-header .seo-button { min-height: 42px; padding: 0 16px; font-size: 13px; }
  .seo-hero { min-height: auto; grid-template-columns: 1fr; gap: 56px; padding: 58px 0 72px; }
  .seo-hero h1 { font-size: clamp(42px, 12vw, 64px); }
  .seo-section { padding: 72px 0; }
  .seo-section-heading, .seo-method { grid-template-columns: 1fr; gap: 24px; }
  .seo-sample-section, .guide-docdecks { grid-template-columns: 1fr; gap: 36px; }
  .guide-hero { min-height: auto; display: grid; align-items: initial; }
  .guide-hero > img { position: relative; height: 390px; object-position: 68% center; }
  .guide-hero-copy { width: 100%; padding: 52px 0 68px; }
  .seo-intro { margin: 0 0 38px; }
  .seo-topic-list { grid-template-columns: 1fr; }
  .seo-topic:nth-child(odd) { border-right: 0; }
  .seo-topic:nth-child(even) { padding-left: 0; }
  .seo-final-inner { align-items: flex-start; flex-direction: column; }
  .seo-footer-inner { flex-direction: column; }
}

@media (max-width: 480px) {
  .seo-header-inner { padding: 0 12px; }
  .seo-header .seo-button { padding: 0 12px; }
  .seo-hero-copy > p:not(.seo-breadcrumb) { font-size: 16px; }
  .seo-actions { flex-direction: column; }
  .seo-actions .seo-button { width: 100%; }
  .seo-proof { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
  .seo-sample { padding: 10px; }
  .seo-sample-trigger { padding: 8px; }
  .guide-hero > img { height: 290px; object-position: 69% center; }
  .guide-hero-copy { padding: 42px 0 54px; }
  .guide-hero h1 { font-size: clamp(42px, 12vw, 58px); }
  .guide-hero p { font-size: 16px; }
  .guide-directory { display: block; overflow-x: auto; }
  .seo-topic { grid-template-columns: 34px 1fr; }
}

@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }